You can also get unlimited storage with unlimited downloads and unlimited file size for one life time payment of $15 on Mankayia, files are encrypted and unmonitored same as Mega.
See:
https://www.mankayia.com/answers.html.
Also, you can get 250 GB free on PromptFile. Unlimited speed, 5GB file size limit.
See:
http://www.promptfile.com/
There is also a nice review on free cloud storage at:
http://freebies.about.com/od/computerfreebies/tp/free-cloud-storage.htm
Edit: Additional ifo. I have done some more searching on Mankayia, it appears there are issues with the service. it used to be another service "Online Storage Solutions" which disappeared and left users hanging in the air. Mankayia support is non existent and the sync app does not work and the servers are slow.